001: /*
002: * $Header: /export/home/cvsroot/MyPersonalizerRepository/MyPersonalizer/Subsystems/Kernel/Sources/es/udc/mypersonalizer/kernel/model/repository/interfaces/RepositoryAccessorFactory.java,v 1.1.1.1 2004/03/25 12:08:36 fbellas Exp $
003: * $Revision: 1.1.1.1 $
004: * $Date: 2004/03/25 12:08:36 $
005: *
006: * =============================================================================
007: *
008: * Copyright (c) 2003, The MyPersonalizer Development Group
009: * (http://www.tic.udc.es/~fbellas/mypersonalizer/index.html) at
010: * University Of A Coruna
011: * All rights reserved.
012: *
013: * Redistribution and use in source and binary forms, with or without
014: * modification, are permitted provided that the following conditions are met:
015: *
016: * - Redistributions of source code must retain the above copyright notice,
017: * this list of conditions and the following disclaimer.
018: *
019: * - Redistributions in binary form must reproduce the above copyright notice,
020: * this list of conditions and the following disclaimer in the documentation
021: * and/or other materials provided with the distribution.
022: *
023: * - Neither the name of the University Of A Coruna nor the names of its
024: * contributors may be used to endorse or promote products derived from
025: * this software without specific prior written permission.
026: *
027: * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
028: * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
029: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
030: * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
031: * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
032: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
033: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
034: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
035: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
036: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
037: * POSSIBILITY OF SUCH DAMAGE.
038: *
039: */
040:
041: package es.udc.mypersonalizer.kernel.model.repository.interfaces;
042:
043: import es.udc.mypersonalizer.kernel.config.KernelConfig;
044: import es.udc.mypersonalizer.kernel.config.KernelConfigManager;
045: import es.udc.mypersonalizer.kernel.config.RepositoryAccessorFactoryConfig;
046: import es.udc.mypersonalizer.kernel.log.Log;
047: import es.udc.mypersonalizer.kernel.log.LogManager;
048: import es.udc.mypersonalizer.kernel.log.LogNamingConventions;
049: import es.udc.mypersonalizer.kernel.util.exceptions.InternalErrorException;
050:
051: /**
052: * An abstract factory for creating accessors. This class configures itself.
053: * It creates the factory instance by reading the class name from a
054: * configuration parameter.
055: *
056: * @author Fernando Bellas
057: * @author Daniel Fernandez
058: * @author Abel Muinho
059: * @since 1.0
060: */
061: public abstract class RepositoryAccessorFactory {
062:
063: /**
064: * The concrete instance of this class specified in the configuration
065: * parameters.
066: */
067: private static RepositoryAccessorFactory singleton = null;
068:
069: static {
070:
071: try {
072: KernelConfig kernelConfig = KernelConfigManager.getConfig();
073:
074: RepositoryAccessorFactoryConfig repositoryAccessorFactoryConfig = kernelConfig
075: .getKernelModelConfig()
076: .getRepositoryAccessorFactoryConfig();
077:
078: String className = repositoryAccessorFactoryConfig
079: .getClassName();
080:
081: Class singletonClass = Class.forName(className);
082: singleton = (RepositoryAccessorFactory) singletonClass
083: .newInstance();
084:
085: } catch (Exception e) {
086:
087: Log mypersonalizerLog = LogManager
088: .getLog(LogNamingConventions.MYPERSONALIZER);
089: mypersonalizerLog.write(
090: "Could not initialize configuration for "
091: + "RepositoryAccessorFactory", e,
092: RepositoryAccessorFactory.class);
093:
094: }
095:
096: }
097:
098: /**
099: * Constructor for subclasses (concrete factories).
100: */
101: protected RepositoryAccessorFactory() {
102: }
103:
104: /**
105: * Returns the concrete instance of this class specified in the
106: * configuration parameters.
107: *
108: * @return the concrete instance
109: */
110: public static RepositoryAccessorFactory getInstance() {
111: return singleton;
112: }
113:
114: /**
115: * Returns an "accessor" for the <code>ServiceProperty</code> class.
116: *
117: * @return the accesor
118: * @throws InternalErrorException if a severe failure occured
119: */
120: public abstract ServicePropertyAccessor createServicePropertyAccessor()
121: throws InternalErrorException;
122:
123: /**
124: * Returns an "accessor" for the <code>CachedServiceReply</code> class.
125: *
126: * @return the accesor
127: * @throws InternalErrorException if a severe failure occured
128: */
129: public abstract CachedServiceReplyAccessor createCachedServiceReplyAccessor()
130: throws InternalErrorException;
131:
132: /**
133: * Returns an "accessor" for the <code>ServiceButtonsState</code> class.
134: *
135: * @return the accesor
136: * @throws InternalErrorException if a severe failure occured
137: */
138: public abstract ServiceButtonsStateAccessor createServiceButtonsStateAccessor()
139: throws InternalErrorException;
140:
141: /**
142: * Returns an "accessor" for the <code>UserRegistrationInformation</code>
143: * class.
144: *
145: * @return the accesor
146: * @throws InternalErrorException if a severe failure occured
147: */
148: public abstract UserRegistrationInformationAccessor createUserRegistrationInformationAccessor()
149: throws InternalErrorException;
150:
151: /**
152: * Returns an "accessor" for the <code>MetaService</code> class.
153: *
154: * @return the accessor
155: * @throws InternalErrorException if a severe failure occured
156: */
157: public abstract MetaServiceAccessor createMetaServiceAccessor()
158: throws InternalErrorException;
159:
160: /**
161: * Returns an "accessor" for the <code>UserGroup</code> class.
162: *
163: * @return the accessor
164: * @throws InternalErrorException if a severe failure occured
165: */
166: public abstract UserGroupAccessor createUserGroupAccessor()
167: throws InternalErrorException;
168:
169: /**
170: * Returns an "accessor" for the <code>ServicePrototype</code>
171: * class.
172: *
173: * @return the accessor
174: * @throws InternalErrorException if a severe failure occured
175: */
176: public abstract ServicePrototypeAccessor createServicePrototypeAccessor()
177: throws InternalErrorException;
178:
179: /**
180: * Returns an "accessor" for the <code>ServicePermissions</code>
181: * class.
182: *
183: * @return the accessor
184: * @throws InternalErrorException if a severe failure occured
185: */
186: public abstract ServicePermissionsAccessor createServicePermissionsAccessor()
187: throws InternalErrorException;
188:
189: /**
190: * Returns an "accessor" for the <code>WorkspaceDefinition</code>
191: * class.
192: *
193: * @return the accessor
194: * @throws InternalErrorException if a severe failure occured
195: */
196: public abstract WorkspaceDefinitionAccessor createWorkspaceDefinitionAccessor()
197: throws InternalErrorException;
198:
199: /**
200: * Returns an "accessor" for the <code>ServiceConfiguration</code>
201: * class.
202: *
203: * @return the accessor
204: * @throws InternalErrorException if a severe failure occured
205: */
206: public abstract ServiceConfigurationAccessor createServiceConfigurationAccessor()
207: throws InternalErrorException;
208:
209: /**
210: * Returns an "accessor" for the <code>DesktopLayout</code> class.
211: *
212: * @return the accessor
213: * @throws InternalErrorException if a severe failure occured
214: */
215: public abstract DesktopLayoutAccessor createDesktopLayoutAccessor()
216: throws InternalErrorException;
217:
218: /**
219: * Returns an "accessor" for the <code>WorkspaceLayout</code> class.
220: *
221: * @return the accessor
222: * @throws InternalErrorException if a severe failure occured
223: */
224: public abstract WorkspaceLayoutAccessor createWorkspaceLayoutAccessor()
225: throws InternalErrorException;
226:
227: }
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